Frost dates in Mequon, WI
The average last spring frost in Mequon is around May 12 and the first fall frost is around October 4. That gives Mequon an average growing season of about 145 days.
Last spring frost
| Early (10% chance after) | April 26 |
|---|---|
| Average (50%) | May 12 |
| Late (90%) | May 29 |
First fall frost
| Early (10%) | September 23 |
|---|---|
| Average (50%) | October 4 |
| Late (90% chance before) | October 18 |